Portable fan with built-in battery recharger in the base



FIG. 1 is a front elevational view of the portable fan with built-in battery recharger in the base showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a portable fan with built-in battery recharger in the base, as shown. 